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BOSTON MARATHON 2025

Daniel Crocker

Bib: 27512•M

DC

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:56/mi
24:38
↑ 97↓ 3451.5%
10K· 6.21 mi
8:16/mi
50:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:16:41
↑ 67↓ 78
20K· 12.43 mi
9:05/mi
1:44:53
↑ 106↓ 860.1%
Half· 13.11 mi
8:58/mi
1:51:00
↑ 19↓ 370.5%
25K· 15.53 mi
9:15/mi
2:13:26
↑ 66↓ 880.2%
30K· 18.64 mi
10:36/mi
2:46:23
↑ 181↓ 1480.2%
20M
12:22/mi
3:03:12
↑ 64↓ 500.2%
21M
13:42/mi
3:16:54
↑ 106↓ 241.6%
35K· 21.75 mi
11:59/mi
3:25:52
↑ 17↓ 861.7%
23M
12:52/mi
3:41:58
↑ 23↓ 630.6%
24M
12:35/mi
3:54:33
↓ 821.3%
40K· 24.85 mi
12:33/mi
4:05:17
↓ 200.3%
25.2M
11:48/mi
4:09:21
↑ 13↓ 160.2%
Finish· 26.22 mi
10:23/mi
4:19:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:00
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time2:28:56
Pace11:22 /mi
📊Positive Split: 34.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:3424:387:5624:38
7:56
-
10K
6.21 mi12:06:1450:188:0625:40
8:16
+0:20
15K
9.32 mi12:32:371:16:418:1426:23
8:30
+0:14
20K
12.43 mi13:00:491:44:538:2628:12
9:05
+0:35
Half
13.11 mi13:06:561:51:008:286:07
8:58
-0:07
25K
15.53 mi13:29:222:13:268:3522:26
9:15
+0:17
30K
18.64 mi14:02:192:46:238:5632:57
10:36
+1:21
20M
20.00 mi14:19:083:03:129:1016:49
12:22
+1:46
21M
21.00 mi14:32:503:16:549:2313:42
13:42
+1:20
35K
21.75 mi14:41:483:25:529:288:58
11:59
-1:43
23M
23.00 mi14:57:543:41:589:3916:06
12:52
+0:53
24M
24.00 mi15:10:293:54:339:4612:35
12:35
-0:17
40K
24.85 mi15:21:134:05:179:5210:44
12:33
-0:02
25.2M
25.20 mi15:25:174:09:219:544:04
11:48
-0:45
Finish
26.22 mi15:35:524:19:569:5510:35
10:23
-1:25

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:56 /mi

Average Pace

9:55 /mi

Slowest Pace

13:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:26

51% of race

Time at Steady Pace

43:32

17% of race

Time at Slower Pace

1:22:58

32% of race

Average Pace: 9:55 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:40:3424:387:5624:38
7:56
#15989
10K
6.21 mi12:06:1450:188:0625:40
8:16
#17221
15K
9.32 mi12:32:371:16:418:1426:23
8:30
#17937
20K
12.43 mi13:00:491:44:538:2628:12
9:05
#18903
Half
13.11 mi13:06:561:51:008:286:07
8:58
#19046
25K
15.53 mi13:29:222:13:268:3522:26
9:15
#19446
30K
18.64 mi14:02:192:46:238:5632:57
10:36
#20505
20M
20.00 mi14:19:083:03:129:1016:49
12:22
#21290
21M
21.00 mi14:32:503:16:549:2313:42
13:42
#21832
35K
21.75 mi14:41:483:25:529:288:58
11:59
#22064
23M
23.00 mi14:57:543:41:589:3916:06
12:52
#22452
24M
24.00 mi15:10:293:54:339:4612:35
12:35
#22701
40K
24.85 mi15:21:134:05:179:5210:44
12:33
#22897
25.2M
25.20 mi15:25:174:09:219:544:04
11:48
#22897
Finish
26.22 mi15:35:524:19:569:5510:35
10:23
#22945
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi15989108041080419273(Top 68%)12174(Top 76%)12174(Top 216%)
10K6.21 mi3.10 mi17221-123211311-50711311-50718299(Top 64%)11766(Top 73%)11766(Top 209%)
15K9.32 mi3.11 mi17937-71611601-29011601-29019273(Top 68%)12174(Top 76%)12174(Top 216%)
20K12.43 mi3.11 mi18903-96612004-40312004-40321346(Top 75%)13064(Top 81%)13064(Top 232%)
Half13.11 mi0.68 mi19046-14312060-5612060-5621671(Top 76%)13211(Top 82%)13211(Top 234%)
25K15.53 mi2.42 mi19446-40012221-16112221-16120979(Top 74%)12837(Top 80%)12837(Top 228%)
30K18.64 mi3.11 mi20505-105912633-41212633-41223175(Top 82%)13689(Top 85%)13689(Top 243%)
20M20.00 mi1.36 mi21290-78512966-33312966-33325765(Top 91%)14814(Top 92%)14814(Top 263%)
21M21.00 mi1.00 mi21832-54213203-23713203-23725881(Top 91%)14830(Top 92%)14830(Top 263%)
35K21.75 mi0.75 mi22064-23213296-9313296-9325835(Top 91%)14747(Top 92%)14747(Top 261%)
23M23.00 mi1.25 mi22452-38813425-12913425-12926221(Top 92%)14947(Top 93%)14947(Top 265%)
24M24.00 mi1.00 mi22701-24913521-9613521-9626411(Top 93%)15016(Top 93%)15016(Top 266%)
40K24.85 mi0.85 mi22897-19613582-6113582-6125729(Top 91%)14652(Top 91%)14652(Top 260%)
25.2M25.20 mi0.35 mi2289713576+613576+622752(Top 80%)13155(Top 82%)13155(Top 233%)
Finish26.22 mi1.02 mi22945-4813594-1813594-1823996(Top 84%)13764(Top 85%)13764(Top 244%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19273

Males

12174

M18-39

12174

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18299

Males

11766

M18-39

11766

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19273

Males

12174

M18-39

12174

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21346

Males

13064

M18-39

13064

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21671

Males

13211

M18-39

13211

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

20979

Males

12837

M18-39

12837

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

23175

Males

13689

M18-39

13689

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

25765

Males

14814

M18-39

14814

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25881

Males

14830

M18-39

14830

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

25835

Males

14747

M18-39

14747

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

26221

Males

14947

M18-39

14947

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

26411

Males

15016

M18-39

15016

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25729

Males

14652

M18-39

14652

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22752

Males

13155

M18-39

13155

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23996

Males

13764

M18-39

13764

Passing Analysis

Category:
Athletes Passed
391
Passed By
7347
Net Change
-6956
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15989
5K → 10K551287-1232#15989#17221
10K → 15K46762-716#17221#17937
15K → 20K411007-966#17937#18903
20K → Half7150-143#18903#19046
Half → 25K73473-400#19046#19446
25K → 30K461105-1059#19446#20505
30K → 20M15800-785#20505#21290
20M → 21M9551-542#21290#21832
21M → 35K5237-232#21832#22064
35K → 23M21409-388#22064#22452
23M → 24M19268-249#22452#22701
24M → 40K11207-196#22701#22897
40K → 25.2M18180#22897#22897
25.2M → Finish2573-48#22897#22945
TOTALS3917347-6956
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing